A comparative study of the environmental health and safety of urban and rural schools of Abadan and their compliance with national standards oleh Rouhhollah Shokri, Abdollah Dargahi, Shima Rezaei, Aliasghar Valipour, Sharareh Zovedavianpoor, Zahra Atafar, Azimeh Karimian, Moslem Golchehreh